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Description of key information

extremely flammable gas

Key value for chemical safety assessment

extremely flammable

Additional information

The substance is not pyrophorice, and yields no flammable gases on contact with water. Given the flammability limits in air of 2.6 - 100 vol%, however, the substance is extrmely flammable. Aqueous solutions of ethylene oxide are flammable to highly flammable liquids, depending on the concentration.

Justification for classification or non-classification

The substance is igniteable when in a mixture of 13 % or less in air. ---> GHS classification criteria for flammable gases: category 1 (extremely flammable gas).